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Contract OI history

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Jan 21, 2028 EXPIRATION

TTD $27.50 Call

TTD280121C00027500

Latest saved OI4,165Oct 23, 2026
Last change+1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TTD $27.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,1652,0820 2026-10-09: 4,156 OI2026-10-14: 4,156 OI2026-10-15: 4,158 OI2026-10-16: 4,164 OI2026-10-21: 4,164 OI2026-10-23: 4,165 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TTD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,165+1
Oct 21, 20264,1640
Oct 16, 20264,164+6
Oct 15, 20264,158+2
Oct 14, 20264,1560
Oct 09, 20264,156No prior observation